11102121443 has 8 divisors (see below), whose sum is σ = 12947080800. Its totient is φ = 9516103800.

The previous prime is 11102121431. The next prime is 11102121479. The reversal of 11102121443 is 34412120111.

It is not a de Polignac number, because 11102121443 - 2²⁸ = 10833685987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102121493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16183508 + ... + 16184193.

It is an arithmetic number, because the mean of its divisors is an integer number (1618385100).

Almost surely, 2^11102121443 is an apocalyptic number.

11102121443 is a deficient number, since it is larger than the sum of its proper divisors (1844959357).

11102121443 is an frugal number, since it uses more digits than its factorization.

11102121443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32367722 (or 32367708 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11102121443 its reverse (34412120111), we get a palindrome (45514241554).

The spelling of 11102121443 in words is "eleven billion, one hundred two million, one hundred twenty-one thousand, four hundred forty-three".